Cardiovascular Diseases Clinical Trials

Older people with HIV (OPWH) are disproportionately impacted by cardiovascular disease (CVD) attributable to behavioral risk factors, and chronic HIV immune dysregulation resulting inflammation. Systemic inflammation is exacerbated by psychological distress via activating the immune response and driving pro-inflammatory CVD risk behaviors. There is promising evidence to suggest that mindfulness could be an effective intervention to reduce psychological distress and support behaviorally- and inflammatory-mediated CVD risk reduction. This project aims to refine and synthesize mindfulness and behavior change content from evidence-based protocols (mindfulness-based stress reduction and diabetes prevention program) to develop and pilot test a new text message-enhanced intervention called "One Mind One Heart" (OM-OH) using feedback from semi-structured interviews with OPWH in psychological distress (N=20), and my multidisciplinary mentorship team (Aim 1). An open pilot (N=5) with exit interviews and pre-post self-report assessments, will inform the initial acceptability of OM-OH and further refine OM-OH as needed (Aim 2). Finally, a pilot randomized controlled trial (RCT; N=50) will be conducted to a.) evaluate benchmarks of feasibility and acceptability of study methods and refined OM-OH compared to enhanced usual care, and b.) investigate potential for effects on psychological distress, inflammation, and behavioral CVD risk (Aim 3). Findings will provide the foundation for an R01 application to conduct an efficacy trial of OM-OH to reduce inflammatory-mediated CVD risk among OPWH. Read Less

The purpose of this study is to develop and test a 12-week sedentary behavior reduction intervention ("Sit Less" program) for patients with cardiovascular disease. The program aims to reduce and break sitting times among this population using an objective activity monitor and mHealth. The investigators will test the program to help cardiovascular disease patients break up sitting time, reduce daily sitting time, and move more. The investigators will also study whether the program leads to improvements in heart disease risk factors, and whether cardiovascular disease patients like the program and can follow it. Read Less

Metabolic surgery is an emerging option to treat obesity-related metabolic diseases (e.g., type 2 diabetes) and prevent cardiovascular disease (CVD). Metabolic surgery can profoundly alter the gut microbiota; meanwhile, gut microbiota may affect surgical outcomes. Longitudinal studies that examined pre- to post-surgery changes in gut microbiota and its relation to cardiometabolic health after surgery are limited. Furthermore, few studies have included African Americans, a population with high rates of cardiometabolic diseases. The investigators aim to fill these research gaps by establishing a longitudinal, observational study of metabolic surgery patients and applying multi-omics to identify stool, blood, and/or tissue microbial features related to post-surgery cardiometabolic outcomes. In the current study, the investigators plan to enroll up to 300 patients who undergo metabolic surgery at Vanderbilt University Medical Center and follow them for up to 10 years after surgery. Fasting blood and stool samples will be collected at pre-surgery and 3-month, 1-year, 2-year, and 3-year post-surgery clinical visits. Tissue samples (e.g., biopsies of the liver and adipose and remnants of the stomach) will be collected during operation. Meanwhile, participants will complete a REDCap survey at baseline and 1-year, 2-year, and 3-year post-surgery. Participants' electronic medical records will be used to obtain additional information and facilitate long-term follow-up. The investigators will evaluate pre- to post-surgery changes in the fecal microbiome and fecal and blood levels of metabolites and proteins and the associations of microbiome, metabolites, and proteins with cardiometabolic improvements after surgery. This study will advance our understanding of the role of gut microbiota in metabolic surgery, which may translate into novel approaches to identify and treat obese patients for better cardiometabolic health. Read Less

The goal of this study is to learn how long-term use of estrogen affects blood vessels in healthy adults who were assigned male at birth. Participants will: give one blood draw of 5 mL have a camera placed under the tongue to take pictures of blood vessels have 2 laser Doppler microdialysis catheters placed on the forearm to monitor blood vessels before and after local drug infusion Researchers will compare blood vessel function of those who take estrogen supplements to those who do not. Read Less

Infants born preterm and of low birth weight are known to be at increased risk for early onset of cardiovascular and renal disease in adult life. This has been related to low nephron mass due to inadequate or early termination of glomerulogenesis in utero and during the perinatal period. Risks for subsequent development of hypertension and kidney disease include proteinuria, excessive weight gain during early life with insulin resistance and supplemental high calorie feedings. The long-term goal is for early diagnosis of those infants who are at risk for future development of hypertension and kidney disease so that the investigators might intervene to potentially avert progression to adult disease. The objective of this clinical trial is to acquire data on the natural history of neonatal kidney function and size in infants born preterm during the first 2 years of life. This will be done through the use of standard serum and urine markers as well as non-invasive ultrasound technology. The central hypothesis of this clinical trial is that a subgroup of patients born preterm and of low birth weight will demonstrate early markers of kidney injury including elevated serum cystatin C, proteinuria and low kidney size. This hypothesis has been formulated on the basis of preliminary data from our group studying this question retrospectively in older children born prematurely who have developed overt kidney disease. The rationale for the proposed research is to develop early serum and demographic markers of pre-clinical kidney disease so that early intervention can occur. The proposed clinical trial is innovative because it will investigate the risk factors for kidney dysfunction at a pre-clinical stage with the idea of gaining more knowledge regarding therapeutic interventions. In addition, the study will assess serum cystatin C as a surrogate test for glomerular filtration rate which could indicate worsening kidney function at an earlier stage than serum creatinine. The proposed research is significant because it is expected to identify at-risk patients for future renal impairment and to prospectively monitor the persistence of proteinuria and its effect on kidney function in the short term. Read Less

To prospectively investigate the efficacy of an insertable cardiac monitor-guided atrial fibrillation (AF) management in reducing subsequent AF burden in patients with persistent or paroxysmal AF undergoing atrial catheter ablation (CA). Read Less

One of the greatest success stories in rheumatology - the achievement of rheumatoid arthritis (RA) remission - is tempered by the fact that individuals with RA are dramatically under evaluated and under treated to reduce the risk for heart attacks and strokes. This project will build the foundation for an intervention that will test the hypothesis that the patient-centered intervention tailored to patients with RA to improve hyperlipidemia screening and treatment, thereby decreasing the risk for heart attacks and strokes. The aims of this proposal are: Aim 1: To identify patient and physician barriers to lower the risk for heart attacks and strokes in patients with RA. Aim 2: To develop an intervention designed to optimize lipid screening and management in RA patients. This will consist of patient education and a decision support program to facilitate screening for hyperlipidemia (high cholesterol level) or initiation of medications to lower cholesterol (primary outcome) and self-efficacy (level of confidence in performing a task) in taking medications to lower cholesterol secondary outcome). Aim 3: To pilot test the efficacy and feasibility of intervention developed in Aim 2. The investigators will apply methods related to clinical trials to test the feasibility of the newly developed intervention. Read Less

Women Veterans are the fastest growing segment of VA users. This dramatic growth has created challenges for VA to ensure that appropriate services are available to meet women Veterans' needs, and that they will want and be able to use those services. The EMPOWER QUERI 2.0 Program is a cluster randomized type 3 hybrid implementation-effectiveness trial testing two strategies designed to support implementation and sustainment of evidence-based practices for women Veterans in up to 20 VA facilities from 4 regions. Read Less

This pre-post study will evaluate the implementation of a cardiovascular telehealth platform, which will connect experts from the Wake Forest University Health Sciences (WFUHS) tertiary care center with Wilkes County Emergency Medical Services (WC-EMS) system, Wilkes Medical Center Emergency Department (ED), and The Wilkes County Health Department Public Health Community Clinic (PHCC) to improve cardiovascular care in this rural community. Read Less

The purpose of this study is to determine if exercise preconditioning can mitigate the off target effects of chemotherapy treatment on measures of cardiovascular function, inflammatory responses, and quality of life. Read Less

This study is a mechanistic clinical trial designed to investigate the effects of the circadian system and sleep on non-dipping blood pressure (BP) in people with hypertension (HTN). Read Less

Type 2 diabetes (T2D) confers a high risk of cardiovascular disease (CVD), particularly among older adults who tend to be physically inactive. Prolonged sedentary behavior (SB) has been shown to negatively influence markers of cardiovascular risk (e.g., blood glucose, blood pressure), even among individuals who are physically active. Most studies that have examined the effects of breaking up SB have focused on young healthy males and prioritized glycemic outcomes. Additionally, sex differences in these outcomes have not been adequately examined. The present study will address these gaps. This 3-arm crossover randomized controlled trial will compare the effects of 3 SB conditions on markers of vascular function. The 3 conditions are: 1) 4 hours of prolonged SB, 2) 4 hours of SB broken up by 5 minutes of self-paced walking every hour, and 3) 4 hours of SB with one 20-minute bout of self-paced walking. In addition to examining the overall effects of each condition, sex differences in physiological responses will be evaluated. Read Less